Acids & Salts Available to Source

Tributyl phosphate (TBP)

CAS 126-73-8 · MF C12H27O4P · MW 266.31 g/mol

Common extractant (U, REE, others)

SDS / TDS Download
CAS Number
126-73-8
Molecular Formula
C12H27O4P
Molecular Weight
266.31 g/mol
Material Family
Acids & Salts
Functional Roles
Physical Properties
melting_point
less than -112 u00b0F (NTP, 1992)
boiling_point
552 u00b0F at 760 mmHg (NTP, 1992)
density
0.982 at 68 u00b0F (USCG, 1999) - Less dense than water; will float
solubility
less than 1 mg/mL at 68.9 u00b0F (NTP, 1992)
vapor_pressure
13.7 mmHg at 68 u00b0F (NTP, 1992)
flash_point
295 u00b0F (NTP, 1992)
GHS / SDS Safety Warning
Acute Toxic Environmental Hazard Irritant Health Hazard Corrosive
  • H315: Causes skin irritation [Warning Skin corrosion/irritation]
  • H351: Suspected of causing cancer [Warning Carcinogenicity]
  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
  • H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
  • H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
  • H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
  • H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
  • H302: Harmful if swallowed [Warning Acute toxicity, oral]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H351 (> 99.9%): Suspected of causing cancer [Warning Carcinogenicity]
  • H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
  • H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H412 (19.6%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Chemical Identity
CAS Number126-73-8
IUPAC Nametributyl phosphate
InChI KeySTCOOQWBFONSKY-UHFFFAOYSA-N
PubChem CID 31357
Synonyms & Trade Names
TRIBUTYL PHOSPHATE Tri-n-butyl phosphate Tributylphosphate Phosphoric acid tributyl ester Tributylphosphat Celluphos 4 tbpa Disflamoll TB Tributilfosfato Tributylfosfaat Tributoxyphosphine oxide Phosphoric acid, tributyl ester Tributyle (phosphate de) Butyl phosphate, tri- Tributylfosfat
Full Description

Common extractant (U, REE, others)